Thomas renwick



(No Model.)

T. RENWIGK. GAR COUPLING Patented Nov. 28, 1893.-

UNITED STATES PATENT QFFICE.

THOMAS RENWICK, OF MIAMI, CANADA.

CAR-COUPLING.

SPECIFICATION forming part of Letters Patent No. 509,627, dated November 28, 1893.

Application filed April 10, 1893. Serial No. 469,652. (No model.)

.To all whom it may concern.-

Be it known that I, THOMAS RENWICK, of Miami, in the county of Dufierin, Province of Manitoba, and Dominion of Canada, have invented certain new and useful Improvements in Oar-Couplings; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming a part hereof.

My invention, which will be hereinafter fully set forth and claimed, relates to automatic car couplings.

The object of my invention is an automatic car coupling of the link and pin type with provision for certain action of the pin and means for operating the same from the side of the car.

Figure 1 is a vertical longitudinal section of my improved coupling, showing the same uncoupled. Fig. 2 is a similar section, show-. ing the link coupled. Fig. 3 is a vertical transverse section through the draw-head, showing the pin hole, and Fig. 4 is an end view, showingthe meansof operating the pin.

A is the draw-head, having a bell month a, converging to a threat a in which the end of the link L has ample room. Immediately in the rear of the point of the throat is a central vertical hole a" in which the pin B can play freely up and down, the throat being extended a little farther rearward of the point. The pin 13 is provided with a collar or shoulder 6, a cover b just above said collar to cover up the aperture of the hole a" and prevent the entrance of snow and ice, and a weighted head b. The draw-head is rounded on top to avoid a lodging place for snow and ice, apt to get in the hole a" and clog the pin B. p

O is a lever of peculiar shape, pivoted to the draw-head at or below its bottom face in lugs a' and in the rear of the pin B. The upper portion of said lever worksin a cavity in the draw-head and is so shaped and curved forward as to project forward under the pin B when free and that its upper forward point 0, while moving backward will also make an upward movement, so as to force the pin B, resting upon it, upward at first, there being sufficient room in the rear of the cavity to allow said lever to be completely out of the way of the link. The lower portion is also curved forward and weighted at the end 0, so as to give the upper part a strong forward pressure.

The pin B is operated, t. 6., lifted, by means of a lever D which is pivoted in a bracket D secured to the end of the car, said lever pass ing through a slot in the head of the pin B and having its end d weighted. A guide d, may be placed to keep the other end steady. If the coupling is in the position shown in Fig. 1, t'. e., the upper part c of the lever is projecting forward in the threat a and the pin 13 resting on top of it a short distance back of the point, a link L forced by an approaching car against said point drives the upper part of said lever back in the rear of the cavity. In its rearward movement it first lifts the pin B a little to insure its being .loose and ready to drop. When the point c has cleared the lower end of the pin and as soon as the link is passed, the pin drops into the link, thus looking it, as shown in Fig. For uncoupling, the handle of thelever D 1s pressed down, raising the pin B and as soon as the pin clears the point 0 of the lever O the action of the weighted lower end presses forward the point 0 under the end of the pin, in which position it remains, the pin resting upon it.

I claim as my invention- 1. In a car coupling, the combination of the bell mouthed draw-head A with contracted and extended throat and extended cavity and having a vertical pin hole immediately at the rear of the pointof the throat and having the topabove said portion founded, a pinB working in said hole and provided with a collar b, cover I) and weighted head I), a lever (l pivoted to the draw-head at or belowits lower face in the rear of the pin hole working in the cavity at the rear of the throat and having its upper portion curved forward to extend in the throat under the pin and swing rearwardly into the cavity to clear said pin and a link and having its lower portion curved,

forward and weighted and a weighted lever D pivoted to the end of the car and passing through the head of the pin B, substantially as set forth.

2. In a car coupling, the combination of a and under the pin and to swing rearward and bell mouthed draw-head A with contracted clear said pin and the end of a common link throat to accommodate the end of a common and having its lower part curved forward and link and an extended throat to accommodate Weighted, substan tially as set forth. 5 5 the rearward swinging head of a lever and In testimony whereof I have signed in the having a vertical pin hole and the top rounded, presence of the undersigned witnesses.

a pin B working in said pin hole provided THOMAS BEN WIOK with a collar, cover and weighted head, and a lever O pivoted at or below the bottom face Witnesses:

10 of the draw-head and having its upper por- A. A. RENWIOK, tion curved forward to extend in the throat M. E. RENWIOK. 

